Features
Best compatibility - Based on NEC uPD720101.
Four external USB 2.0 ports, mainly designed for PC requiring more USB 2.0/1.1 devices connected to the rear panel

Specification General
USB 2.0 EHCI and USB 1.1 OHCI Compliant
Backward compatibile with USB 1.1 devices
Transfer rate: Each port up to 480Mbps
Connects up to 127 USB devices simultaneously
Over current protection, each port 500mA
External port: USB-A x 4
Internal port: USB-A/Pin port x 1

System Requirement PC computer with one 32-bit PCI slot
MS Windows 98SE/Me/2000/XP/Vista